Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions,
see Getting Started with Amazon Web Services in China
(PDF).
Amazon SQS message deduplication and
grouping
This topic provides best practices for ensuring consistent message processing in Amazon SQS. It
explains how to use:
Setting-up dead-letter queue
retention in Amazon SQS
Avoiding inconsistent message
processing in Amazon SQS